open hole

基本解释

For the extended well, high angle drilling, horizontal drilling and deep well drilling, or in the well section of large dogleg severity, or the long open hole, casing wear often happens.
在大位移井、大斜度井、水平井和深井钻井中，或者在狗腿严重度较大的井段，或者在技术套管下入后的长裸眼钻井过程中，常常出现套管磨损问题。
Practical application result indicates that the said interpretation platform is suitable for open hole single well interpretation and can meet the needs of field production and scientific research.
通过实际应用证明该解释平台是一个实用的裸眼井单井解释平台，可以满足现场生产和科研的需要；
Ideal open hole completion and casing perforation completion are derived from the update of the skin factor.
对于套管射孔完井则需要考虑射开程度的不完善和孔眼周围被压实引起的井底附加压降。

The fifty-nine year old Watson needed to make a short attempt on his final hole to win the British Open.
Either you open a nice hole between yourself and the rest of your army, in which case somebody's going to get very badly killed and you're going to be on the run very soon, or you have to somehow communicate to the rest of the army, "Everybody come over this way," which will still leave that flank open to being flanked by the other side.
或者在你和自己的军队之间,形成一个缺口,这样有会造成惨重的伤亡,你很快会全军溃逃,或者你以某种方式和部队沟通,全都过来这边,这样仍会使一侧对敌人敞开,从而受到对方攻击
耶鲁公开课 - 古希腊历史简介课程节选
The Marines attacked. They broke open a small hole in the door of the brick building.

In July the club will open an 18-hole golf course, designed by former British Open champion Tom Weiskopf.
FORBES: Private Powder

裸眼
Up to June,2010,Zhongyuan Oil Field has drilled 66 horizontal wells,3 types of completion means have been used in these wells,out of which,liner completion accounts for 75%,,casing completion 17.9% and open hole completion 7.1%.
截止到2010年6月,中原油田已完钻水平井66口,采用了筛管、套管和裸眼三种完井方式,分别占75%、17.9%和7.1%。
无套管钻孔